Concentrated Laundry Detergent Using Fatty Acid Surfactants

The patent removes ethoxylated surfactants from the formulation to eliminate 1,4-dioxane residues. Instead, it uses alternative surfactant systems including fatty acid methyl ester sulfonates (FAMES), alkyl polyglucosides (APG), and fatty acid soaps that do not produce carcinogenic byproducts, thereby extracting the harmful component while maintaining cleaning function through substitute ingredients.

The patent changes the chemical composition parameters by replacing petrochemical-based surfactants with bio-based alternatives. Specifically, it uses surfactants derived from renewable resources with different molecular structures that avoid dioxane formation, changing the fundamental chemical parameters of the formulation to achieve both safety and performance.

The patent converts the limitation of bio-based surfactants (perceived as less effective) into an advantage by formulating synergistic combinations that enhance cleaning performance. It uses blends of FAMES, APG, fatty acid soaps, and enzymes that work together to achieve superior cleaning while providing biodegradability and environmental benefits, turning a perceived weakness into a strength.

The patent employs composite surfactant systems combining multiple bio-based ingredients (FAMES, APG, fatty acid soaps) with enzymes and builder chemicals. This composite approach creates a synergistic formulation where each component contributes specific functions, achieving comprehensive cleaning performance while maintaining environmental sustainability through biodegradability.

The patent uses enzyme stabilizers and chelating agents as intermediary substances that protect the concentrated active ingredients from degradation. These intermediaries prevent unwanted reactions between surfactants and enzymes, maintain pH balance, and ensure compatibility with the packaging materials, enabling stable concentrated formulations.

The patent optimizes physical-chemical parameters including pH control, ionic strength, and surfactant concentration ratios to ensure stability in concentrated form. By carefully adjusting these parameters and using buffered systems, the formulation maintains stability while achieving high active ingredient concentration for improved productivity.